(a) (i) (ii) With the aid of a suitable sketch and in your own words, outline the basic characteristics of strain gauges

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A I Ii With The Aid Of A Suitable Sketch And In Your Own Words Outline The Basic Characteristics Of Strain Gauges 1 (66.93 KiB) Viewed 19 times

(a) (i) (ii) With the aid of a suitable sketch and in your own words, outline the basic characteristics of strain gauges and explain why they are widely used in industrial weighing systems. A strain gauge is used as a sensor to convert the weight of an object into a voltage signal through an interfacing circuit, as shown in Figure 3.1. Rs is the resistance of the strain gauge whilst R₁ = 1 k and VDD = 5 V. Derive an equation for the output of the circuit (Vo). With the aid of a suitable sketch, discuss the linearity of the circuit in relation to the weight. VDD R₁ Strain gauge OV Figure 3.1